denistheruski wrote on 11/11/12 at 14:05:10:... the vac line while performing Serowbot's petcock test in order to see if I have diaphragm leakage? I sniffed the line after I took it off of the carb nipple and it did smell a bit like gasoline. Not sure if that's a sign of anything.
This is quite right. The running engine sucks the air out of the line, producing a light vacuum. Now you stop the engine and air and gas vapor re-enters into the line. Behind the throttle you should have a mix of air and gasoline.
verslagen1 wrote on 11/11/12 at 14:25:38:that hose is between the gas tank and the carb... a faint smell of gas?
No, sorry. The line he mentioned is between the carb and the petcock.
Just another sort of paranoia coming up?
I personally am not shy for a handful of gasoline molecules in my mouth, so for a quick test I suck on the vac line from the carburetor side, close the line with the tip of my tongue and feel the continuous vac sucking my tongue. If it does for about 10 seconds, I can trust the diaphragm to be OK. Sucking pulses makes the work of the diaphragm audible.